L-Methionine 98.5-101.5% (by titrimetric analysis) USP

Supplier: Schürr-Schuhvertrieb GmbH

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Synonyms: (S)-(-)-2-Amino-4-(methylthio)butyric acid, (S)-(-)-Methionine, L(-)-Methionine, (S)-(-)-2-Amino-4-(methylthio)butanoic acid, H-Met-OH, Methionine, (S)-2-Amino-4-(methylthio)butanoic acid

00221-25KG 00221-100G 00221-250G 00221-25G 00221-1KG 00221-5KG

102553-576EA 2076.45 USD

102553-576 102572-602 102572-604 102614-880 102614-882 102641-466

L-Methionine 98.5-101.5% (by titrimetric analysis) USP

L-Methionine

Formula: C₅H₁₁NO₂S
MW: 149.21 g/mol
Melting Pt: 284 °C (dec.)
Storage Temperature: Ambient

MDL Number: MFCD00063097
CAS Number: 63-68-3

Specification Test Results

Heavy Metals	≤15 ppm
Chloride (Cl⁻)	≤0.05%
Sulphate (SO₄²⁻)	≤0.03%
Iron (Fe)	≤30 ppm
pH	5.6 - 6.1
Optical Rotation	[a]D20 = +22.4 to +24.7°
Infrared Spectrum	Conforms to Structure
Loss on Drying	≤0.3%
Organic Volatile Impurities	To Meet Requirements
Individual Impurity	≤0.5%
Total Impurities	≤2.0%
Residue on Ignition	≤0.4%
Assay by Titration	98.5 - 101.5% (Anhydrous Basis)
Appearance	White to off-white crystalline powder

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